How broadly exploitable is this vulnerability?

Exploitability depends on where and how the MCP File Handler is exposed. If the code-mcp server is reachable over a network and handles file operations based on user-supplied paths, a remote attacker may exploit the flaw. Deployments that restrict access to trusted networks or require strong authentication reduce exposure but do not remove the underlying weakness.

Does an attacker need local access to exploit this?

No. The vulnerability is described as remotely exploitable. The attacker typically only needs the ability to send crafted requests to the endpoint that uses `is_safe_path`, subject to whatever authentication and network controls are in place.

What is the safest general fix pattern for developers?

Use a canonicalization-and-compare approach: - Convert incoming paths to absolute, canonical paths (resolving `..`, symlinks, and encodings). - Verify that the resulting path is a descendant of a designated root directory using robust path APIs, not string prefix checks. - Reject or sanitize any path that does not strictly remain under the allowed root before performing any filesystem operation.

Severity:

HIGH RISK

(7.3)

Path Traversal (CWE-22) in code-mcp MCP File Handler is_safe_path

CVE-2026-7811

Published:

May 4, 2026

Status:

Deferred

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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CWE-918

HIGH RISK

HIGH

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May 6, 2026

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HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

Path Traversal

CWE:

CWE-22

Impact:

Arbitrary File System Access

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal

CWE:

CWE-22

Impact:

Arbitrary File System Access

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

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Path Traversal (CWE-22) in code-mcp MCP File Handler is_safe_path

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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